Surely when the mayoral election takes place it will be based not on the 1997 general election manifesto but on a newly written manifesto which the successful mayoral candidate will play a leading role in defining. This manifesto will be of course subject to approval by the Labour Party before it becomes the document around which London Labour Party members will campaign.
It is therefore quite right that any mayoral candidate should and will be completely committed to that manifesto.
However, it is not surprising in the selection process that different candidates will put forward different views as to how key issues should be tackled - including London Underground financing.
I was interested to attend the Fabian Society fringe meeting at the Labour Party conference in Bournemouth to listen to how the three then-declared candidates - Ken Livingstone, Glenda Jackson and Trevor Phillips - answered the question on London Underground financing.
Glenda Jackson as the then-establishment candidate supported the government line while Trevor Phillips, who is now Frank Dobson's running mate, supported Ken Livingstone.